Gates 508C User manual

Brand: Gates

Model: 508C

Category: Measuring, testing & control

Type: User manual

Gates.com/stm

Model 508C

Sonic

Tension

Meter

Manual

Sonic Tension Meter Components

508C Meter

Optional

Inductive Sensor

Flat Flexible

Sensor

Optional

Cord Sensor

Contents

Important Warnings ............................ 2

Operating Instructions ......................... 4

Operating Theory ............................ 10

Belt Mass Constants .......................... 11

Belt Installation Tension ....................... 14

Tips on Using the Gates Sonic Tension Meter ...... 14

Meter Re-Calibration for Non-Standard Belts ....... 16

Summary of Features ......................... 16

Optional Accessories.......................... 16

Troubleshooting.............................. 17

Formulas ................................... 22

Warranty, Service, and Certification .............. 23

Thank you for purchasing the

Gates Sonic Tension Meter.

Please read this manual thoroughly to

fully utilize all the functions of this meter.

Important Warnings

• Do not drop this unit. Impact of any kind can result in damage.

• Do not put water, solvent or any other liquids on this unit.

• Do not leave this unit in a dusty environment.

• Do not leave this unit where it will get hot, such as in a car or in direct

sunlight.

• Do not use volatile solvents to clean this unit.

• Do not use this in an area where a spark could cause an explosion.

• Do not pull hard on the cord of the sensor (microphone) from either end.

• Do not use this unit outside during a thunderstorm, turn off power and seek

a safe place. Non-compliance could result in electric shock from thunderbolt.

• Do not bend the flexible arm sensor (microphone) within 20 mm (3/4 inch)

of either end, because the construction is tubular, and the flexible arm sensor

should not be bent at sharp angles.

Flat flexible type measurement

sensor (microphone) standard.

One-touch connector

“MEASURE” key

Power key

WIDTH key

MASS key

(unit mass)

UP DOWN

buttons

(frequency

range selection)

0-button

(frequency

range switching) Hertz key

(switching frequency

and tension)

Select key

SPAN key

LCD screen with

backlight

LED Indicator lights

(Left: red

Right: green)

Power supply: 2ea. AAA size batteries

Operating Instructions

Attaching Sensor

Each of the male and female connectors has a notch on the surface.

Fit the connectors together at the notch and push them together. To

disconnect, hold the collar on the sensor and pull out.

Turn on the power

Press the “Power” key and the LCD screen display appears as follows:

The LCD screen is backlit for use in low light conditions. The screen

and backlight remain on for up to five minutes of inactivity, then the unit

automatically turns off.

The opening screen displays the contents of the data storage register

that was last being used when the STM was turned off. Values for (1)

“MASS” (Belt Mass Constant), (2) “WIDTH” (Belt Width), and (3) “SPAN”

(Belt Span Length) are all displayed simultaneously.

Important Note: Reasonable non-zero belt constant values must

be used in the storage registers in order to receive belt tension readings.

The unit will display span frequency values regardless of the belt

constants entered, but will display “Error” and the red light will remain

on if the calculated belt tension value is beyond the display range of the

screen.

Pointer (4) indicates the data storage register number where current belt

data is saved. To change the data or storage register number, refer to

“Input Data Storage and Retrieval” on page 6.

Pointer (5) represents the current frequency filter setting. To change,

refer to “Frequency Filter Settings” on page 6.

Pointer (6) indicates the battery level meter. A dark battery symbol

indicates a full charge. When the battery level becomes critically low, the

meter indicator as well as a “Low Batt” message both blink.

1 – “MASS”

2 – “WIDTH”

3 – “SPAN”

4 – Storage Register Number

5 – Frequency Setting

6 – Battery Level Meter

Enter belt mass

M =

h h h

g/m

Belt mass constants are provided on pages 11, 12, and 13 of this

manual. Capacity available for input is from 000.1 to 999.9 grams/meter.

Press the “MASS” key and enter numbers on the keypad. Make sure the

decimal is placed correctly in the display panel. If your entry is incorrect,

press “MASS” again and the cursor returns to the original position.Enter

belt width or number of rib/strands

W =

h h h

mm/#R

Capacity available for input is from 000.1 to 999.9 millimeters or number

of ribs or strands.

For a Synchronous belt, enter the belt width in millimeters.

For an Industrial V-belt, enter the number of strands being measured.

For a PolyFlex® JB® belt, enter the number of strands being measured.

For a Micro-V® belt, enter the total number of ribs.

For a 21 mm wide Poly Chain® belt, enter “021.0”;

For a 1” wide PowerGrip® timing belt, enter “025.4”;

For a single strand Industrial V-belt, enter “001.0”.

When using the Sonic Tension Meter on drives with multiple single or

PowerBand® belts, be sure to use the appropriate mass constant and

enter the correct number of belt strands being measured. There is no

need to multiply the mass constant by the number of ribs/strands, as the

Sonic Tension Meter will calculate the correct total belt mass.

Example:

For a V-belt drive using four individual 3V belts enter “1” for the belt

width (“Width” key). The Sonic Tension Meter will display the static

belt tension per individual belt. When measuring the belt tension in the

V-belt drive, make sure the V-belts do not interfere with each other while

vibrating.

If the same drive used a 4-strand 3V PowerBand® belt instead of single

belts enter “4” for the belt width (“Width” key). The total belt tension for

all four belts is measured as the entire belt vibrates. The Sonic Tension

Meter will display the total static belt tension for the PowerBand® belt (for

all strands within belt).

Enter the span length

S =

h h h h

Capacity available for input is from 0001 to 9999 millimeters. The span

length represents the distance between the contact points on adjacent

sprockets/pulleys/sheaves. This distance may be measured directly, or

it may be calculated from the formula below. Calculating the span length

provides the most accurate results.

Span Length Formula

Where: S = Span Length (mm)

CD = Center Distance (mm)

D = Large Pulley Diameter (mm)

d = Small Pulley Diameter (mm)

Input Data Storage and Retrieval

Mass, width, and span values can be stored for up to 40 different drive

systems. Press the “SELECT” key to toggle through the 40 storage

registers. Storage registers can also be recalled by simply pressing the

“Select” key and the number that corresponds to the storage register.

The storage register number is displayed in the upper left hand corner of

the LCD screen; Pointer (4) on page 4.

The contents of all three data registers is displayed simultaneously.

The contents of a register can be changed by simply pressing the

mass, width, or span key and entering a new value. The new value is

automatically saved if the storage register is changed, or the meter is

turned off.

Frequency Filter Settings and Ranges

A frequency filtering feature is available to focus the meter frequency

measurement response to a narrower range. This can be useful in

improving the response of the meter and in filtering out potentially

interfering background noise.

Holding down the “0” button for 1-2 seconds will display a menu

that allows the frequency measurement range to be changed.

The available ranges are as follows:

High 500 – 5000 Hz

Standard 10 – 600 Hz

The default setting is the “Standard” range and can be changed by

pressing the “UP” and “DOWN” keys. To accept the highlighted range,

press the “MEASURE” key. Note the letter in the upper left hand corner

of the LCD display indicates the frequency range setting Pointer (5) on

page 4; H - High, S - Standard.

Microphone Gain Setting

The microphone gain level is set automatically when the unit is

turned on, based upon environmental background noise. If maximum

microphone sensitivity is desired, turn the meter on without the

microphone attached and wait for the meter to power up. Then connect

the microphone so tension measurements can be taken.

Measurement

Press the “MEASURE” key; the green LED light will begin flashing.

Tap the belt span to make the belt span vibrate. Hold the sensor

approximately 1 cm (0.4 inch) from the belt or closer without touching

the belt. The green LED light will continue to flash until a signal is

received by the sensor, then the green LED light will turn off and a

wave-form graphic will appear on the LCD screen. After the signal is

processed, the measured belt tension is displayed, the meter beeps

three times, and the green LED light turns on indicating a successful

tension measurement.

After a tension reading has been obtained, pressing the “Hz” key toggles

the LCD display output between tension, frequency, or both.

If the belt signal cannot be measured, or the measured frequency of the

calculated belt tension is out of the range of the meter, the red LED light

will turn on. When this occurs, either the tension or frequency fields may

also display ERROR.

To make another tension reading, simply tap the belt again. The

auto-trigger feature will automatically re-activate the meter without

pressing the “MEASURE” key.

Tension Display

T =

h h h h h

Kgf or lbf or N

The displayed output of measured force can be switched between

units of Kilograms force, Pounds force, and Newtons. This can be

accomplished as follows:

With the unit powered off, press the “0” and “9” and “Power”

keys at the same time. The meter will then turn on with the current

unit of measure displayed. Units can then be changed by pressing the

“SELECT” key until the desired unit appears. Press and hold down the

“POWER” key again until the meter turns off. Now turn the meter on for

normal operation. Data entered into the unit must still be in SI units of

millimeters and grams.

The capacity available for output is 99,999 Pounds force, Kilograms

force, or Newtons.

Frequency Display

F =

h h h h

Pressing the “Hz” key toggles the LCD display output between tension,

frequency, or both.

Measurement Errors

If either the calculated belt tension or measured frequency cannot be

displayed the red LED light will turn on and the LCD screen may display

“ERROR”. If an error has been made in the measurement, “ERROR”

will be displayed. Check the accuracy of the mass constants, width and

span values and retry the measurement until a tension or frequency

value is displayed. With the auto-trigger feature it is not necessary to

press the “Measure” key again.

When a tension or frequency reading is obtained, take at least two

additional readings for comparison. Three readings in relative close

proximity indicate reasonably accurate belt tension readings.

Tension measurements made on belts at very low tensions may yield

greater variability and a greater probability for errors. If a tension reading

cannot be obtained, the belt may be too loose to generate a clear

harmonic frequency signal. If this is the case, the belt may need to be

tightened in order to obtain a tension reading. The optional Inductive

Sensor is more effective at very low frequencies than the conventional

microphone sensors, and may provide better results.

NOTE: Frequency only readings must have data values in the storage

registers or the meter’s red LED light will stay on.

Battery Gauge

A battery graphic is located in the upper-right hand corner of the LCD

screen. This gauge provides an estimate of the remaining battery power.

A dark filled graphic indicates a full charge. When the battery level

becomes critically low, the meter indicator as well as a “Low Batt”

message both blink.

Optional Sensors

The 508C Sonic Tension Meter comes equipped with a flat flexible type

sensor that allows one hand operation.

An optional cord type sensor allows access to areas that the flexible

type sensor may not fit.

An optional cord type inductive sensor relies on a magnetic field rather

than on sound waves. This allows tension measurements to be taken in

both noisy and windy environments. In order for the inductive sensor to

function, a magnetic field must be present on the belt. This can be easily

accomplished by taping a small magnet to the back of the belt.

Sonic Tension Meter Operating Theory

When an impulse is applied to a belt span, it first oscillates in all modes

of vibration, but the higher

frequency modes decay

faster than the fundamental

mode. This leaves a

continuous sinusoidal wave

that is related to a specific

belt tension; note diagram.

Using a microcomputer, a

data processing method

to capture a belt’s natural

oscillation frequency was

developed. Using this

method, the wave form

frequency can be

determined easily.

The new system uses special sensors to detect belt oscillation wave

forms. Data from these sensors is sent to the microcomputer inside

the Sonic Tension Meter for processing and conversion into the natural

frequency. To calculate belt tension, the Sonic Tension Meter system

uses the “transverse vibration of strings theory.” To operate the meter,

the belt mass, span length and width of the belt must be entered.

Formula:

T = 4 x M x W x S2 x f2 x 10-9

Where:

T = Belt span tension (Newtons)

M* = Belt mass constant (g/m)

W = Belt width (mm) or number of belt strands

S = Length of the span to be measured (mm)

f = Natural frequency of the belt (Hz)

*Units of mass constant M for synchronous belts is g /(m)(mm) or g

/10 cm2 along the belt pitch line. Constant M for V-belts represents the

weight in grams of a 1 meter length of belting with a correction factor

applied to compensate for internal bending resistance.

Unlike a string, belts have cross-sectional rigidity. Therefore, tension

values measured by the meter may be higher than the actual belt

tension, depending on the operating conditions under which the effects

of rigidity arise. When the actual belt tension must be more precisely

measured, a simple calibration test may be necessary.

Adjusted mass constants are for

standard stock belts only. Non-

standard belt constructions may

yield inaccurate results and may

require special adjusted mass

constants or special calibration

procedures. Units are grams/meter

per mm of width.

Poly Chain® GT® Carbon™

(all Poly Chain) ........... g/m

5M (5mm) .......................3.0

8M (8mm) .......................4.7

14M (14mm) ...................7.9

19M (19mm) .................10.5

PowerGrip® GT®2 / GT3

& TruMotion® ............... g/m

2M (2mm) .......................1.4

3M (3mm) .......................2.8

5M (5mm) .......................4.1

8M (8mm) GT2 ............... 5.5

8M (8mm) GT3 ............... 5.8

14M (14mm) GT2 ........... 9.6

14M (14mm) GT3 ........... 9.7

Twin Power® 3M .............2.8

Twin Power® 5M .............4.1

Twin Power® 8M .............6.9

Twin Power® 14M .........11.4

PowerGrip® HTD®

& TruMotion® ............... g/m

3M (3mm) .......................2.4

5M (5mm) .......................3.9

8M (8mm) .......................6.2

14M (14mm) ...................9.9

20M (20mm) .................12.8

Twin Power 3M...............2.7

Twin Power 5M...............4.6

Twin Power 8M...............7.2

Twin Power 14M...........12.3

PowerGrip® Timing

& TruMotion® ..................g/m

MXL (0.080”) ..................... 1.3

XL (0.200”) ........................ 2.4

L (0.375”) ........................... 3.2

H (0.500”) .......................... 3.9

XH (0.875”) ...................... 11.3

XXH (1.25”) ..................... 14.9

Twin Power XL .................. 1.9

Twin Power L..................... 3.2

Twin Power H .................... 4.6

Gates Mectrol® (Steel)

Long Length Urethane ...g/m

XL ...................................... 2.1

L......................................... 3.5

H ........................................ 3.9

H-HF .................................. 4.2

XH.................................... 10.5

T5 ...................................... 2.2

AT5 .................................... 3.2

ATL5 .................................. 3.6

T10 .................................... 4.3

T10-HF .............................. 4.6

AT10 .................................. 5.6

ATL10 ................................ 6.7

ATL10-HF .......................... 6.9

T20 .................................... 7.3

AT20 .................................. 9.9

ATL20 .............................. 10.8

HTD5 ................................. 4.1

HTD8 ................................. 5.9

HTD14 ............................. 10.7

HTDL14 ........................... 12.3

STD5 ................................. 3.9

STD8 ................................. 5.1

Belt Mass Constants

Gates Mectrol® (Aramid)

Long Length Urethane .... g/m

XL ...................................1.9

L......................................3.0

H ..................................... 3.2

WH ..................................3.3

XH...................................9.1

T5 ...................................2.0

AT5 ................................. 2.7

T10 .................................3.6

WT10 .............................. 3.9

AT10 ............................... 4.2

T20 .................................5.9

AT20 ............................... 7.3

HTD8 ..............................4.7

HTD14 ............................8.4

STD5 ..............................2.9

STD8 ..............................4.3

For a single V-belt, enter

1 rib/strand. When measuring a

PowerBand® (multiple) rib/strand

belt, enter the number of

ribs/strands per belt. Units are

grams/meter per rib or strand.

Super HC® & XP™ ......... g/m

3V ....................................72

5V ..................................200

8V ..................................510

3VX ..................................53

5VX ................................140

5VXP .............................140

8VX ................................383

Super HC & XP PowerBand g/m

3V ....................................96

5V ..................................241

8V ..................................579

3VX ..................................65

5VX ................................157

5VXP ............................160

Predator® Singles........ g/m

5VP ...............................217

8VP ................................528

AP ..................................114

BP ..................................174

CP..................................323

SPBP ............................. 208

SPCP .............................375

Predator PowerBand .. g/m

3VP ..................................89

5VP ...............................217

8VP ................................528

BP ..................................212

CP..................................332

Hi Power® II .................. g/m

A ......................................95

B ....................................168

C .................................... 275

D .................................... 553

E ....................................965

Hi Power II PowerBand g/m

A ....................................151

B ....................................200

C .................................... 342

D .................................... 663

Tri-Power® .................... g/m

AX ....................................79

BX ..................................136

CX..................................216

Tri-Power PowerBand .. g/m

BX ..................................163

CX..................................281

Hi Power II Dubl-V ...... g/m

AA ..................................125

BB ..................................194

CC .................................354

DD ................................ 750

Metric Power™ -

Lengths ≤ 3000mm ..... g/m

XPZ..................................51

XPA .................................87

XPB ...............................156

XPC ...............................249

10X ..................................44

13X ..................................82

17X ................................138

Metric Power™ -

Lengths > 3000mm ..... g/m

SPZ..................................72

SPA ...............................115

SPB ...............................186

SPC ...............................337

13X ..................................77

17X ................................138

Micro-V® ....................... g/m

H ..................................... 5.3

J ......................................7.0

K ......................................18

L.......................................29

M ....................................109

Truflex® ........................ g/m

2L.....................................19

3L.....................................38

4L.....................................66

5L...................................108

PoweRated® ................. g/m

67 (3L) .............................45

68 (4L) .............................71

69 (5L) ...........................119

Polyflex® ...................... g/m

3M...................................3.5

5M...................................9.9

7M....................................24

11M..................................49

Polyflex® JB® ............... g/m

3MJB ..............................5.2

5MJB ...............................11

7MJB ..............................30

11MJB .............................64

Belt Installation Tension

Proper belt installation tension is essential in V-belt and synchronous

drives for optimum performance and reliability. The correct installation

tension for a belt, or set of belts, depends upon the drive geometry

and load conditions and must be calculated. Procedures for calculating

belt tension are included in the appropriate drive design manual. To

determine the belt tension recommended for specific drive applications,

either refer to the appropriate belt drive design manual or to the

DesignFlex® Pro™ belt drive selection program located at:

http://www.gates.com/designflex

The following belt drive design manuals listed below may be helpful:

Poly Chain® GT® Carbon™ Belt Drive Design Manual #17595

Light Power and Precision Drive Design Manual #17183

Heavy-Duty V-Belt Drive Design Manual #14995-A

PowerGrip® GT®3 Belt Drive Design Manual #17195

These catalogs can be downloaded from www.gates.com/catalogs or

contact Gates Application Engineering at (303) 744-5800.

Tips on Using the Sonic Tension Meter

The Gates Sonic Tension Meter is capable of measuring belt tension

with greater accuracy and consistency than traditional methods. It

should not, however, be expected to produce exacting results in every

case. While numerous factors can be found to influence the accuracy of

the meter’s output, one must remember that traditional methods of belt

tensioning such as force/deflection or belt elongation are approximate.

The following suggestions are provided to help you achieve a high level

of accuracy with the Gates Sonic Tension Meter:

Consistent Readings

• After the correct constants have been entered into the meter, take

at least three readings to confirm that results are consistent and the

meter is not erroneously reading background noise.

Minimum Belt Span Length

• When measuring the tension in synchronous belts, use spans that are

more than 20 times the length of the tooth pitch. Using spans shorter

than this may result in readings that are higher than the actual tension

due to belt cross-sectional stiffness.

• When measuring the tension in V-belts, use spans that are more than

30 times the belt top width. Using spans shorter than this may result

in readings that are higher than the actual tension due to belt cross-

sectional stiffness.

Minimum Belt Tension

• There are limits as to how low a span tension value the meter can

measure depending upon the belt type and cross section. Minimum

recommended installation tension values are available for all belt

sections from either drive design manuals or Gates Product Application

Engineering. Attempting to measure belt tensions below these

minimum recommended values should be avoided, as the meter may

display “Error” or provide inaccurate results. If the belt span tension is

low, and a tension reading cannot be obtained, try increasing the belt

tension and then take another reading.

New Belt Installation

• Before measuring belt installation tension, turn the drive over by hand

for several revolutions to fully seat the belt and equalize tension in

all of the belt spans. Factors such as sprocket/shaft eccentricity, belt/

sheave groove irregularity, etc., can influence belt tension as the

sprockets or sheaves rotate. If the measured belt tension changes

significantly as the drive is rotated, and accurate measurements

are needed, determine the low and high values and average them

together.

Windy Environment

• Wind can adversely affect the ability of the meter to make a reading by

creating excessive background noise. If measuring in a windy location,

the Inductive Sensor should be used instead of a microphone sensor.

Inductive Sensor

• An optional Inductive Sensor should be utilized in noisy or windy

environments for optimal results. The Inductive Sensor uses a

magnetic field rather than sound waves.

A simple way to use this sensor is with a magnet taped to the backside

of the belt. Small “rare earth” magnets provide excellent results with

minimal influence on the belt span frequency due to the added weight.

Using Frequency Mode

• If an assembly process is used to set belt tension in a particular

application, and the meter is used only to monitor belt installation

tensions, the frequency mode can be used rather than displaying an

absolute measured tension value. Belt span frequencies for minimum

and maximum tension conditions can be measured so assemblers/

technicians can use the meter to verify that belt installation tension is

within an acceptable range.

Re-calibration for Non-Standard Belts

Measuring the tension of special belts with extra thick backings,

alternate materials, etc., may yield less than accurate results using belt

mass constants for standard belts. In these cases, a simple calibration

process may be used. The belting can be placed on a fixture with a

known span length under various known tensions (hanging weights can

be used). By taking frequency measurements at various tensions, span

frequency vs. tension data can be collected.

This data can then be used in a graphical format or in equation form to

convert measured span vibration frequencies to accurate belt tensions.

Data of this type is specific to each application and cannot be applied to

drives with different span lengths. Because the resulting data may not

be linear, it is best to measure the tension of non-standard belts in terms

of frequency rather than deriving new belt mass constants to measure in

terms of absolute tension.

Summary of Features

• Model 508C - Product No. 7420-0508

• Includes flexible type sensor - Product No. 7420-0205.

• 40 Memory Registers for Belt Constants

• Max Frequency of 5000 Hz

• Auto Microphone Gain Control

• Variable Frequency Range Filters

• Auto Shut Off - The meter will automatically shut off after 5 minutes of

inactivity. Power can be shut off manually by pressing and holding the

power button for 1-2 seconds.

• Batteries - 2 each; AAA. The battery compartment can be found on the

backside of the meter.

Optional Accessories

• Cord Type Sensor -

Product No. 7420-0206

Fits in difficult to access areas.

• Inductive Sensor -

Product No. 7420-0212

Recommended for noisy or

windy environments.

Magnets included.

• Replacement Magnets (set of 10) -

Product No. 7420-1212

For use with Inductive Sensor.

Sonic Tension Meter

Troubleshooting Guide

Symptom Cause To Correct

Meter Won’t Turn On

Batteries are dead Replace Batteries

Battery contacts

are corroded

Clean contacts and replace batteries

Meter has sus-

tained damage

Consider meter repair or replace-

ment

Gates certification / evaluation /

repair service

Don’t Know What Reading Is Correct For Belt Drive

Meter measures

belt tension but

does not indicate if

it is correct

Determine correct belt tension level

using the Design Flex Pro, Design

Flex Mobile, or Design IQ applica-

tions

Determine correct belt tension level

from engineering equations in Gates

Drive Design Manual

Establish proper belt tension level

based on knowledge and experience

All Gates design tools are available

www.gates.com/drivedesign

Don’t Know What Constants To Enter

Mass Constant Mass constants for all Gates belt

sections are available on the data

card and Users Manual provided

with the Sonic Tension Meter

The appropriate Mass constant is

provided on drive design printouts

Width Constant Width represents the width of

synchronous belts in mm or the

number of V-belt strands/ribs being

measured at once (enter “1” if the

tension of only one belt within a set

is being measured at a time)

The appropriate Width constant is

provided on drive design printouts

Symptom Cause To Correct

Span Constant Span represents the length of the

belt span being measured in mm

The appropriate Span constant is

provided on drive design printouts

Can’t Obtain A Belt Tension Reading

Sensor is too far

away from belt sur-

face

Move sensor as close as possible

without interfering with vibrating belt

span

Belt is too loose to

generate frequency

signal

Tighten belt

Background noise

is excessive

Temporarily eliminate background

noise

Use inductive sensor instead of

microphone

Meter is set in the

incorrect frequency

range

“Standard” frequency range is

generally best

With meter on, press “0” for 2 sec

and select “Standard” or “High”

frequency range

Standard (S) = 10 – 600 Hz

High (H) = 500 – 5000 Hz

Belt span fre-

quency is less than

30 Hz

Microphone performance is reduced

considerably at frequencies less

than 30 Hz

Use the inductive sensor for

frequencies down to 10 Hz

Excessive wind

is blowing across

Microphone

Shield or shelter microphone

Use inductive sensor

Belt span is long

and frequency very

low

Tighten belt

Check to see if calculated belt

frequency is below 30 Hz

Artificially reduce belt span length

using a block, etc.

Use inductive sensor for span

frequencies below 30 Hz

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Gates 508C User manual

Brand: Gates

Model: 508C

Category: Measuring, testing & control

Type: User manual

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Gates 508C User manual

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